Purification of pentafluoroethane
A process for the purification of pentafluoroethane by removing chloropentafluoroethane therefrom which comprises contacting the impure pentafluoroethane in the gas phase with a liquid, polar organic compound extractant, preferably by countercurrent flow through a column, to form a liquid phase cont...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A process for the purification of pentafluoroethane by removing chloropentafluoroethane therefrom which comprises contacting the impure pentafluoroethane in the gas phase with a liquid, polar organic compound extractant, preferably by countercurrent flow through a column, to form a liquid phase containing pentafluoroethane and recovering essentially pure pentafluoroethane from the liquid phase, preferably by simple distillation under reflux conditions. The liquid, polar organic compound may be an oxygen- and/or nitrogen-containing compound or a halogenated hydrocarbon. |
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